What would be required in addition to the Toslink adapter would be an optical cable, probably a very short one between the optical audio output on the TV to the converter. Then if your headphones are wireless, just connect the transmitter to the audio outputs of the converter. You may need a mini phone plug to RCA cable here. If your headphones are direcct wired, you will need a headphone amplifier in place of the transmitter.

What are your headphones?

my headphones are wired nothing fancy 20 dollars headphones just use it at certain times when my gf is sleeping